guard

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【释义】：

n．❶ 警戒，戒备：on guard 值班，站岗．off guard 下岗．keep guard 放哨，警卫．be on one’s guard 戒备著，提防著．be off one’s guard 不提防，不戒备．❷ 卫兵，哨兵，警卫员；(pl．)警卫队：a Red guard 红卫兵．a frontier guard 边防战士．the guard of honour仪仗队．mount guard 上岗，放哨．stand guard 站岗．relieve guard 接岗．❸ 监狱看守员．❹ 【英】列车员．❺ 防卫物，保护器．❻ (篮球)后卫．

－vi．❶ 警戒．❷ 提防，戒备：guard against disease预防疾病．guard against conceit and rashness戒骄戒躁．❸ 守卫．

－vt．保卫，保护，看守：guard one’s life保护生命安全．guard prisoners看守犯人．Vaccination will guard the baby from smallpox．种牛痘能使孩子不得天花．The commune members built a dyke to guard the crops against flood．社员建堤坝保护庄稼不受水灾．